`
`1. Acell culture chip having a stack structure formed by sequentially
`
`stacking:
`
`a first electrode provided on a main surface of a first board;
`
`a first partition wall layer including a first main flow path, and a first
`
`inlet flow path and a first outlet flow path connected to the first main flow path:
`
`a planar mesh structure sheet used as a scaffolding material for cells;
`
`a second partition wall layer including a second main flow path, anda
`
`10
`
`second inlet flow path and a second outlet flow path connected to the second
`
`main flow path; and
`
`a second electrode provided on a main surface of a second board,
`
`wherein the planar mesh structure sheet is sandwiched between the
`
`first partition wall layer and the second partition wall layer,
`
`15
`
`among aperture ratios of a surface of the planar mesh structure sheet
`
`facing the first partition wall layer, an aperture ratio of a portion facing the
`
`first main flow path is greater than an aperture ratios of portions facing the
`
`first inlet flow path and thefirst outlet flow path, and
`
`among aperture ratios of a surface of the planar mesh structure sheet
`
`20
`
`facing the second partition wall layer, an aperture ratio of a portion facing the
`
`second main flow path is greater than an aperture ratios of portions facing the
`
`secondinlet flow path and the second outlet flow path.
`
`2. The cell culture chip of Claim 1,
`
`25
`
`wherein the planar mesh structure sheet used as the scaffolding
`
`material is formed by crossing fibers of a polymer material at 30 degrees to 120
`
`degrees, each fiber having a diameter of 1 pm to 50 pm.
`
`18
`
`
`
`3. The cell culture chip of Claim 1,
`
`wherein, in the planar mesh structure sheet, an interval between fibers
`
`of a mesh structure of a scaffolding material corresponding to a main portion
`
`where an upper flow path and a lower flow path face each other and cells are
`
`cultured is 10 to 100 pm, and an interval between fibers of a mesh structure of
`
`a scaffolding material facing a portion to or from which the upperflow path and
`
`the lower flow path merge or branchoff, is 1 to 10 pm.
`
`19
`
`
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